http://phys.org/news/2014-08-confine-crystal-surface-transparent-nanoparticles.html
This explains how heat can be converted into dipole motion, the source of LENR power as follows: Silver has conducting electrons, and when the particular blue wavelength interacts with them, those conducting electrons will oscillate back and forth strongly. "It's a resonance phenomenon. At that point, you'll get very strong light scattering," Hsu explains. The phenomenon is called a localized surface plasmon resonance. In the case of the Ni/H reactor, heat is converted to vigorous dipole motion. I believe one possible way that gamma rays are converted to XUV may be through "an embedded eigenstate"
